Parts for your 2019 Subaru Outback-Gas struts

2019 Subaru Outback Gas Struts — What They Do and When to Replace

Technical sources confirm the 2019 Subaru Outback (BS series) is fitted with gas‑charged struts on the rear gate. The Subaru Service Manual for MY2019 (Body/Rear Gate – Stay) specifies removal and installation of the gas‑charged “rear gate stay”, and Subaru’s parts catalogue lists “Stay Assembly – Rear Gate” for both manual and power rear gate variants. The bonnet is supported by a prop rod, not gas struts, as detailed in the manual’s Front Hood section.

On this Outback, the tailgate gas struts do the heavy lifting — literally. They counterbalance the weight of the rear gate so it opens smoothly, stays put at full height, and closes in a controlled way. Even on power rear gate models, the gas struts share the load with the electric drive, protecting components and keeping operation safe and predictable.

As part of routine servicing, a quick once‑over of the gas struts pays off. Signs of wear include the tailgate sagging or not staying up, needing extra shove to lift, a chattering or creaking noise, or an oily film on the shaft from a weeping seal. Cold mornings can make a tired strut feel much weaker. Keeping the shafts clean with a soft cloth helps, avoid grease on the shiny rod as it attracts grit and can damage the seals. A light silicone spritz on the ball sockets only is fine.

• Replace in pairs to keep lift and balance even.
• Support the tailgate with a prop or a helper before removing any strut.
• Ease back the spring clips, pop the sockets off the ball studs, and click the new units on firmly.
• For power rear gates, use the correct spec struts and run the open/close initialisation so the system relearns its travel.

Because these are pressurised units, they shouldn’t be heated, punctured, or thrown in general rubbish. Choose OE or high‑quality equivalents matched to the Outback’s build and, for power gates, the correct side and force rating. To help them last, avoid forcing the gate when iced up, don’t hang heavy extras off it, and keep the sealing surfaces clean. With the right struts fitted and checked at regular service intervals, the Outback’s rear gate will keep working sweet as for years and kilometres to come.

Popular questions about 2019 Subaru Outback gas struts

How long do the tailgate gas struts typically last?
There’s no fixed interval, but many Outback owners see 5–10 years depending on climate and use. Heat, cold, dust, and frequent cycling all play a part. Annual inspection during scheduled servicing is the best guide — replace when holding force drops or leaks appear.

Are power rear gate struts different from manual ones?
Yes. Power rear gate models use struts matched to the electric drive system, and one side may have a different rating or integrated hardware. Using the wrong type can upset operation. After replacement, the power gate should be initialised via a full open/close cycle so the control unit relearns positions.

Can a competent home mechanic replace them?
Generally, yes — the job is straightforward with basic tools and a safe prop for the tailgate. The key is supporting the gate, swapping both struts, and ensuring the sockets are fully seated on their ball studs. On power gates, follow the correct procedure and run the recalibration, if unsure, a workshop can handle it quickly.